Contains definitions of terminology used in subdisciplines of entomology like insect systematics and taxonomy, biology, ecology, morphology, insect toxicology and physiology, economic entomology and pest management...

An interdisciplinary, online, wiki-based encyclopedia "about the Earth, its natural environments, and their interaction with society...

Contains entries on "insect classification, behavior, ecology, genetics and evolution, physiology, and management, and references to relevant literature...

Contains "about 160 academic articles covering the salient aspects of soil physics, chemistry, biology, fertility, technology, genesis, morphology, classification and geomorphology...

"Introduces the fundamentals of plant sciences, such as cells, transportation and photosynthesis, and also examines related fields, such as agribusiness, conservation and ethnobotany...

Calls itself a textbook, but is more literally an encyclopedia of integrated pest management (IPM)...